Y tuong bai toan: Ban dau ta co tap menh de: vi du: a "ho",b "sot", c "dau dau", d "chong mat", e "buon non",... Ket hop voi tap luat: a,b,c-> kq1 (kq1: sot virus) a,f->kq2 (kq2: tieu chay),...
Dua vao dau vao tu nguoi dung, ket hop voi luat de ta chan doan duoc benh cua benh nhan